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interop: update the code external example. #1598

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May 6, 2025
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interop: update the code external example. #1598

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2 changes: 1 addition & 1 deletion pages/interop/explainer.mdx
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Expand Up @@ -115,7 +115,7 @@ The transaction that receives the message on the destination chain calls a contr
This call can be at the top level, directly from the externally owned account, or come through a smart contract.
The call to `CrossL2Inbox`, also known as the *executing message*, needs to [identify the initiating message uniquely](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol#L35-L42), using the chain ID of the source chain, the block number, and the index of the log event within that block, as well as a few other fields as a sanity check.

`CrossL2Inbox` can either [validate the message exists](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol#L171-L185), or [call a contract if the message exists](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol#L171-L185).
`CrossL2Inbox` can either [validate the message exists](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol#L76-L83), or [call a contract if the message exists](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/CrossL2Inbox.sol#L76-L83).

## Block safety levels

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